Filters








19 Hits in 10.3 sec

Stereo Matching: From the Basis to Neuromorphic Engineering [chapter]

M. Domnguez-Morales, A. Jimnez-Fernndez, R. Paz-Vicente, A. Linares-Barranco, G. Jimnez-Moreno
2012 Current Advancements in Stereo Vision  
Acknowledgement This work has been supported by the Spanish Science and Education Ministry Research Projects TEC2009-10639-C04-02 (VULCANO). A. Rosenfeld (1969) References  ...  The final step of this work evaluates similarities between classical stereo vision matching algorithms and AER retinas obtained data, to obtain a first-approach matching algorithm in an AER stereo vision  ...  After this introduction to a classical stereo vision system and all the steps that are part of the stereo vision process, this work will focus on a relatively new approach to a digital system implementation  ... 
doi:10.5772/45901 fatcat:n47ylibbvnfifevdco7r5wva4m

Stereo Matching in Address-Event-Representation (AER) Bio-Inspired Binocular Systems in a Field-Programmable Gate Array (FPGA)

Manuel Dominguez-Morales, Juan P. Domínguez-Morales, Ángel Jiménez-Fernández, Alejandro Linares-Barranco, Gabriel Jiménez-Moreno
2019 Electronics  
Spike-based processing is a relatively new approach that implements processing methods by manipulating spikes one by one at the time they are transmitted, like a human brain.  ...  The aim of this work was to study the viability of a matching mechanism in stereo-vision systems, using AER codification and its implementation in a field-programmable gate array (FPGA).  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/electronics8040410 fatcat:bnzs6vbayzfcpgsstd6z3jhacq

Event-Based Sensing and Signal Processing in the Visual, Auditory, and Olfactory Domain: A Review

Mohammad-Hassan Tayarani-Najaran, Michael Schmuker
2021 Frontiers in Neural Circuits  
The unmatched efficiency in information processing has long inspired engineers to seek brain-like approaches to sensing and signal processing.  ...  Our aim is to facilitate research in event-based sensing and signal processing by providing a comprehensive overview of the research performed previously as well as highlighting conceptual advantages,  ...  AUTHOR CONTRIBUTIONS Both authors listed have made a substantial, direct and intellectual contribution to the work, and approved it for publication.  ... 
doi:10.3389/fncir.2021.610446 pmid:34135736 pmcid:PMC8203204 fatcat:qjvv6czzufazthcyvs7go5pnj4

Asynchronous Stereo Vision for Event-Driven Dynamic Stereo Sensor Using an Adaptive Cooperative Approach

Ewa Piatkowska, Ahmed Nabil Belbachir, Margrit Gelautz
2013 2013 IEEE International Conference on Computer Vision Workshops  
This paper presents an adaptive cooperative approach towards the 3D reconstruction tailored for a bio-inspired depth camera: the stereo dynamic vision sensor (DVS).  ...  This work deals with developing an appropriate approach for the asynchronous, event-driven stereo algorithm.  ...  One typical approach [9] [10] was to apply conventional stereo matching on pseudo-frames rendered from DVS events accumulated over a particular period of time.  ... 
doi:10.1109/iccvw.2013.13 dblp:conf/iccvw/PiatkowskaBG13 fatcat:kqf2jvblfffmxltteydwamoyta

A Spike-Based Neuromorphic Architecture of Stereo Vision

Nicoletta Risi, Alessandro Aimar, Elisa Donati, Sergio Solinas, Giacomo Indiveri
2020 Frontiers in Neurorobotics  
We describe a prototype interface designed to enable the emulation of a stereo-vision system on neuromorphic hardware and we quantify the stereo matching performance with two datasets.  ...  As temporal information is a crucial feature in this process, the advent of event-based vision sensors and dedicated event-based processors promises to offer an effective approach to solving the stereo  ...  ACKNOWLEDGMENTS We authors would like to thank Marc Osswald for the fruitful discussions, Chenxi Wu for contributing to the AER interface design, and Dmitrii Zendrikov for helping with the process of calibrating  ... 
doi:10.3389/fnbot.2020.568283 pmid:33304262 pmcid:PMC7693562 fatcat:bwsyksh7kzcwdodjy2qsypu4b4

On the use of orientation filters for 3D reconstruction in event-driven stereo vision

Luis A. Camuñas-Mesa, Teresa Serrano-Gotarredona, Sio H. Ieng, Ryad B. Benosman, Bernabe Linares-Barranco
2014 Frontiers in Neuroscience  
This high temporal precision makes the output of these sensors especially suited for dynamic 3D visual reconstruction, by matching corresponding events generated by two different sensors in a stereo setup  ...  This paper explores the use of Gabor filters to extract information about the orientation of the object edges that produce the events, therefore increasing the number of constraints applied to the matching  ...  The authors also benefited from both the CapoCaccia Cognitive Neuromorphic Engineering Workshop, Sardinia, Italy, and the Telluride Neuromorphic Cognition Engineering Workshop, Telluride, Colorado.  ... 
doi:10.3389/fnins.2014.00048 pmid:24744694 pmcid:PMC3978326 fatcat:6rzh5z7uovdxhi5td4wfkrtaxe

Neuromorphic Stereo Vision: A Survey of Bio-Inspired Sensors and Algorithms

Lea Steffen, Daniel Reichard, Jakob Weinland, Jacques Kaiser, Arne Roennau, Rüdiger Dillmann
2019 Frontiers in Neurorobotics  
Any visual sensor, whether artificial or biological, maps the 3D-world on a 2D-representation. The missing dimension is depth and most species use stereo vision to recover it.  ...  Stereo vision implies multiple perspectives and matching, hence it obtains depth from a pair of images. Algorithms for stereo vision are also used prosperously in robotics.  ...  AUTHOR CONTRIBUTIONS LS, DR, AR, and RD are responsible for the idea, the core concept, and the architecture of this paper. LS, JW, DR, and JK did the research and wrote the paper.  ... 
doi:10.3389/fnbot.2019.00028 pmid:31191287 pmcid:PMC6546825 fatcat:5kjbiahivzeuvkmpxokdvvnyu4

A High-Performance Hardware Architecture for a Frameless Stereo Vision Algorithm Implemented on a FPGA Platform

Florian Eibensteiner, Juergen Kogler, Josef Scharinger
2014 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops  
As a novelty, in this paper we present an event-based stereo vision matching approach based on time-correlation using segmentation to restrict the matching process to active image areas, exploiting the  ...  The results show that our matching criterion, based on the time of occurrence of an event, leads to a small average distance error and the parallel hardware architecture and efficient memory utilization  ...  [23] proposed in 2012 an event-based matching using the spatial distance to epipolar lines as a matching criteria.  ... 
doi:10.1109/cvprw.2014.97 dblp:conf/cvpr/EibensteinerKS14 fatcat:vyb2lyjss5a5bnz37hstd6vu4i

A Review of Bioinspired Vision Sensors and Their Applications

2015 Sensors and materials  
The reviewed applications based on the bioinspired vision sensors include visual tracking, detection, recognition, simultaneous localization and mapping (SLAM), reconstruction, stereo matching, and control  ...  Since the emergence of bioinspired vision sensors, various applications based on them have been proposed in the computer vision and robotics fields.  ...  Acknowledgements This research was supported by a grant to the Biomimetic Robot Research Center funded by the Defense Acquisition Program Administration (UD130070ID).  ... 
doi:10.18494/sam.2015.1133 fatcat:qmb7lv765ngevewkmuozg5dyeq

Event-based Vision: A Survey

Guillermo Gallego, Tobi Delbruck, Garrick Michael Orchard, Chiara Bartolozzi, Brian Taba, Andrea Censi, Stefan Leutenegger, Andrew Davison, Jorg Conradt, Kostas Daniilidis, Davide Scaramuzza
2020 IEEE Transactions on Pattern Analysis and Machine Intelligence  
This paper provides a comprehensive overview of the emerging field of event-based vision, with a focus on the applications and the algorithms developed to unlock the outstanding properties of event cameras  ...  We also discuss the techniques developed to process events, including learning-based techniques, as well as specialized processors for these novel sensors, such as spiking neural networks.  ...  This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication.  ... 
doi:10.1109/tpami.2020.3008413 pmid:32750812 fatcat:vlxvlv4uynh5rpw4qlmaywqlqq

Event-based Vision: A Survey [article]

Guillermo Gallego, Tobi Delbruck, Garrick Orchard, Chiara Bartolozzi, Brian Taba, Andrea Censi, Stefan Leutenegger, Andrew Davison, Joerg Conradt, Kostas Daniilidis, Davide Scaramuzza
2020 arXiv   pre-print
This paper provides a comprehensive overview of the emerging field of event-based vision, with a focus on the applications and the algorithms developed to unlock the outstanding properties of event cameras  ...  We also discuss the techniques developed to process events, including learning-based techniques, as well as specialized processors for these novel sensors, such as spiking neural networks.  ...  One common approach in artificial SNNs is to assume that a neuron will not generate any output spikes if it has not received any input spikes from the preceding SNN layer.  ... 
arXiv:1904.08405v2 fatcat:ffh6el7ojfg6jag5qm2hwnhweu

Event-based processing of vision applied to stereo and behavioural tracking

Paul Rogister
2010
Distance to the epipolar line The matching approach we choose here is to filter out as much as possible the wrong matches so that only the true match remains.  ...  Our event-based stereo matching algorithm uses the temporal dynamics of events to simplify the matching process.  ...  A.1.3 Event-Based Stereo Vision: Correspondence Solving The java file for disparity matching is is: ch.unizh.ini.jaer.projects.stereo3D . StereoOnFundamentalMatrix4 .java.  ... 
doi:10.5167/uzh-164018 fatcat:rlwxdxs5cjbkrf6skg4zf45upy

Event-based neuromorphic stereo vision

Marc Osswald
2016
A Spiking Neural Network for Stereo Vision corresponding to an inclined epipolar plane (φ > 0) is shown in Fig. 5 .5b.  ...  A Spiking Neural Network for Stereo Vision The effect of precise temporal dynamics The final experiment examines the effect of the temporal precision of spike timing on stereo matching performance.  ...  to the real optical flow as defined in machine vision.  ... 
doi:10.5167/uzh-204645 fatcat:xdbifc43irhdfgqpo75ckoq5ty

A Spike-Based Neuromorphic Architecture of Stereo Vision

Nicoletta Risi, Alessandro Aimar, Elisa Donati, Sergio Solinas, Giacomo Indiveri
2020
We describe a prototype interface designed to enable the emulation of a stereo-vision system on neuromorphic hardware and we quantify the stereo matching performance with two datasets.  ...  We describe a prototype interface designed to enable the emulation of a stereo-vision system on neuromorphic hardware and we quantify the stereo matching performance with two datasets.  ...  ACKNOWLEDGMENTS We authors would like to thank Marc Osswald for the fruitful discussions, Chenxi Wu for contributing to the AER interface design, and Dmitrii Zendrikov for helping with the process of calibrating  ... 
doi:10.5167/uzh-200404 fatcat:sffsdrbr4rb2nmqrw4l4mupwje

Synaptic Learning for Neuromorphic Vision - Processing Address Events with Spiking Neural Networks

Jacques Kaiser
2020
Zusätzlich kommunizieren Neuronen untereinander mit kurzen elektrischen Impulsen, den so genannten Spikes, die sich über Synapsen bewegen.  ...  Since the field of computer vision mainly focused on processing frames, most vision algorithms can not be used directly to process events.  ...  (AER) in neuromorphic vision sensor.  ... 
doi:10.5445/ir/1000122690 fatcat:qiunfe453vhptaimsacnhpryra
« Previous Showing results 1 — 15 out of 19 results